The meteorological data on a global scale are so important for initialization purposes in Numerical Weather Prediction. Particularly over data-sparse areas like Indian Ocean

The meteorological data on a global scale are so important for initialization purposes in Numerical Weather Prediction. Particularly over data-sparse areas like Indian Ocean, can be met only through derivation of products indirectly from satellite data.

The meteorological data on a global scale are so important for initialization purposes in Numerical Weather Prediction. Particularly over data-sparse areas like Indian Ocean, can be met only through derivation of products indirectly from satellite data.

Since 1984, India Meteorological Department (IMD) routinely provides the processed imagery and derived quantitative products from various INSAT satellites to the user community

INSAT Series

At present the following two Geostationary satellites are in operation

Kalpana –1launched in Sept. 2002 is located at 74.0°E

INSAT-3A launched in April, 2003 is located at 93.5°E

INSAT products availability

OLR,QPE, CMV,SST are available from 1990 onwards.

Water vapour imageries and related products were introduced from 1999 onwards.

UTH & NDVI are available from 2010 onwards.

NSDC has been commissioned in the SatMet Division w.e.f. 26.10.2005.

NSDC has been commissioned in the SatMet Division w.e.f. 26.10.2005.

The Center provides the following key capabilities:

Archival of processed imagery data (HDF-5 format ) of all available channels and all data of derived quantitative products from a number of operational satellites (INSAT-1D,2E,3A and KALPANA-1) is available online.

Data can also be transferred to the user in JPEG and ASCII format as well.

The system is also maintaining on-line storage of current data and products for last 2-3 months.

NSDC has its own weblink on IMD website to facilitate data availability and request for retrieval. Data can be disseminated to the user via:

ftp link;

CD or DVD;

Portable media

A network of 353 CWDS (252 analog and 101 Digital) stations is operational along the east and west coast of India for warning the coastal regions in their local language in case of a cyclone approaching those areas.

A network of 353 CWDS (252 analog and 101 Digital) stations is operational along the east and west coast of India for warning the coastal regions in their local language in case of a cyclone approaching those areas.

This network is also going to be replaced by 500 nos. DTH modified type CWDS stations within a years time.

Oceansat-II Winds

Installation of data reception / processing systems from NOAA/Metop/MODIS polar orbiting satellites at New Delhi, Chennai and Guawahati is completed.

Installation of data reception / processing systems from NOAA/Metop/MODIS polar orbiting satellites at New Delhi, Chennai and Guawahati is completed.

The images and products from these systems are also displayed on IMD website for use in weather forecasting.